Effect of magnetic field, pressure and correlated hopping of electrons on conductivity of Mott-Hubbard material

We discuss the influence of external magnetic field h and pressure p on a static conductivity of Mott-Hubbard material which is described by model with strong intra-site Coulomb repulsion and correlated hopping of electrons. Green function and energy spectrum are calculated by the use of a variant of projection procedure. The static conductivity σxx is calculated as a function of electron concentration n, h, p, and temperature T. The correlated hopping is shown to cause the electron-hole asymmetry of transport properties of real materials